Radiator shutter



May 23, 1933. E. G. PETERSEN RADIATOR SHUTTER Fled April 9, 1928 8 Sheets-Sheet l ,3, fd W J May 23, 1933 E. G. PETERsEN RADIATOR SHUTTER Filed YApril 9, 1928 8 Sheets-Sheet 2 May 23, 1933. E, Q PETERSEN 1,910,905

RADIATOR SHUTTER Fi1ed Apr1 9, 1528 8 Sheets-Sheet 3 May 23, 1933. E. G. PETERsEN l RADIATOR SHUTTER Filed April 9, 1928 8 Sheets-Sheet 4 May 23, 1933. E. G. PETERSEN 1,910,905

RADIATOR SHUTTER Fi1ed-Apri1 9, 1923 s sheets-sheet 5 Wfl/111111111 ZZJ/@m 2901@ Ci P/@WWSSTL May 23, 1933. E. G. PETERSEN RADIATOR SHUTTER Filed April 9, 1928 8 Sheets-Sheet 6 May 23, 1933. E. G, PETERSEN 1,910,905

RADIATOR SHUTTER Fled Apr1 9, 1928 8 Sheets-Sheet 7 May 23, 1933. E. G. PETERSEN 1,910,905

RADIATOR SHUTTER Filed April 9, 1928 8 Sheets-Sheet 8 Patented May 23, 1933 ENT;v eprice v- Energia;je.jiii'rimsrafocnicneo,'ILLiNois-Assienon'ro rims vo'olvrfief "f i A Application'iea-aprn'e, The lipresentginvent ion relates to radiator shutters, andfis ,particularly concerned. with built-in: shutters? for. the. .radiators of .intern-l. combustion v`-engines-v. 5... Il. 7,. .l Onefotethel objects. of the present invention-is the. provision .of a novel radiatonand shutter assembly, whereby .the ,radiator core, shuttersand' shcllviare carried directly by theY 'chassis of the .we l1.icle,t thereby 'relieving fw the .radiation-core of excessweightand diminishing the' possibility;- o radiator leaks caused :by the support ofgany structure .upon the less .durable partsof a radiator core. jAnother-'object .of thei invention is the provision of novel meansiof .support for a radiator. core, radiator shutters, and ,radiator sheil, including meansffor carrying said parts; directly from the, chas'sis of a afeliicle by,l independent .supporting means,el i1ninat ing the; fastening means .v .between these elements which jha's been .employed fini the structuresof Athe prior; art.. .;Anothe'rnobject .of my invention is-the provision of a novel `automatic ithermostatic shutter and radiator assembly in which the thermostatic =elenient 'is .carried by a builtinireceptacle forming a -partof the radiator core,"` said receptacle beingrprovidcdwith meansfor adjustably and releasably supporting'said `thermostatie element.

. Another object of my invention is the provision of a' novel adjustable thermostatically actuated .shutter structure .Comprising r a shutter and a thermostat with operative ad mechanical connections, both lsupported by a radiator core, and means for adjusting the relative position of the thermostat in said core.

Another object ot my invention is the provision of a novel shutter and radiator core assembly comprising a shutter frame supported directly upon integralI ianges carried by the radiator core and 4eliminating the prior modes ot' support which are apt to damage thev core structure.

y .Anothfcr' object :of my invention is the provision of novel radiator vcore and shell assembly, :whereby the shell lmay be secured to thecorc bythe same sc'curir'i'g means ,l 'rANYgoFCHIcAGd ILLINOIS, A coRPoRA'rIoN or `nnrnimilm l "''nAIiIYAToR SHUTTER 192s. seriai Nonaessi.

which supports the shell .and :core upon the vehicle-chassis. 1

Another object of ,myinvention is the provision. g of a. novel radiator. spout structure, .consisting of. `a sectionals radiatorsp'out which permits a simple and efficacious mode of .n assembly and attachment ofzthe ,foregoing parts without .f1adatlitional. fastening means if .f 'i Another -object ofthe vinvention is the provision of a .novel built-inshutter-assemblyv capable-of long periodsof service vwithoutrrattling, and which includes aplurality of false shutters for permanently closing the lower openingsoi? the, radiator 4core Where the cooling fluid liablel to freeze at extremely low temperatures. .m1, j: Another-.objectj-of 4the inventiongisithe provision of a novel radiator shutter control including thermostatic means for actuating a plurality yof. shuttersfmeans for adjusting the position of said thermostatic means tocontrol said shutters and/o1' quicklyldetachable means y for moving said thermostatic meansto inoperative position.

. 'lhepresentV application is directed particularly to the general assembly and structure of the radiator shutters7 and thenovel features of the thermostatically controlled shutter are the subject matter of adivisional application, Serial No. 351,479, liled April l,.1929 for thermostatically controlled shutteis for internal combustion engines.

Other objects and advantages of my invention will fappear -more fully from the following description and from the accompanying drawings, in which similar characters of reference indicate similar parts throughout the several views.

Referring to the drawings:

Figure l is a front elevational view of my built-in shutter :assembly partially broken away to show the shutter structure;

Figure 2 is a cross sectional elevational View takenon the line 2-21of Figure l;

-Figure 3 isa similar View taken on the lines 3 3 of Figurel;

. F igur'efi is a vmedial cross sectional .View of the radiator shell;

Figure-8 1s a plv n crosssectlonal-viewof the shutter frame and shutters with'the top framejmexnberremovedr... Figure '9v is `aplar'1' cross setionallviewif lower end of the shutters; Figure l is a plan cross sectional view of the radiator shell and shutter frame,zf.taken1 below the shutters on a plane at right angleslto tthe 'false shutters; l" t Figure 11 is a plan view of oneform 'of sectional'radiator spout; Q f Figure 12 isl amedial crosssectioi'ial view iffthes'a1'ne`,`,r taken o n the line 1212f'of I. f'f, I" 51 )'Uvw f\. '13 is a plan viewifof 4"a vvmodified 'Figure l forr'nbf lradiator's'poutiw i Figure 14 is a crosssectional elevational view takenon-the line i1 4-414/01? Figure'13; 'lFigure' l1'5"is' a view :of the shutters `and shutter` frame, showing in deta'il the attach-l ingelement'sand conformation 'of these 'membersgf f l' 'A lFigure-l is an elevational view in partial 'cross' vsection* showing'fa modified form of thermostat supp`ort;"".""" 'f' .fEFigure 17 is anend'elevational'view of theysam'e;-v f 'l Figure 18 is a view similar to'l Figure 16 of 'another'modiie 'form of therinostatI supT pori-r yi. .In 1v f'.'f: i., {eff-, -'f1 Figure 19 is a rear elevational View of :the device shown in `Fi'gurelS; f1

Figure 20 av'i'ew similarfto' Figure16 of another' modified o'rm' of thermostat sup- Figure'21'i`s a rear'elevational view of the same; and

'Figure 22 is a view in perspective of the supporting sleeve shown in Figure 20. eferring to Figure 6, 23 indicates a radiator core having a pair yof lateral frame members 24,l preferably formed of 'sheet metal and forming the sidesof a core of the usual construction.. having rhoneycombed channels, tubes or other members adapted to permit .the circulation of watergandrto present an increased cooling area for the passage of air. The exact construction of the honeycombed portion ofjthe .core isimmat.er 1al,l.and does notaiiectthemerits of the present invention.. j The side frame members 24 of the core form the outer lwalls of the core, 'and are provlded with vintegral forwardly projecting flanges 26'for the support of a shutter frame and shutters, further tobe described.`

The integral flangesI 2.6 are' provided with elongated apertures 28 for the attachment ;d-ir ectly, upon the chassis.

of the shutter frame by a plurality of bolts 29, the elongated apertures permitting a slight adjustment of the shutters and frame relative to the core. The base of the radiator core 23 may be enclosed by a sheet metal wall 30 and the back-of the core provided with "the usual conduit '31"- for watercirculation. Where the radiator core is of less length than required to rest upon the Vchasi 'sis`1nember, l provide a channeled sheet the radiator' slutters,'t'ak`en just above"the"" metal memberf32for"`supporting the core n The channeled member 32 may have a supporting flange 33, transverse iianges 34 and a pair of outwardly turned attaching flanges 35 Secured to the bottom wall of the core by spot welding or other 'convenient fastening means; I The upper portion of theradiator core includes a chamber-'having `outside lwalls 36,37 and 38, the rear'vwall 38 being 'provided with-the usual conduit vfor connecting thel 'upper portion ofthe radiator tothe water jacket of an internal combustion'engine. "The'upper wall 37 and -rontwall 36 are' provided with an `aperture l39fover whichisjwelded a cast metal spout fitting 4() formed substantially' like an elbow, and havingV an upper aperture '41 adapted to receive the radiator spout. The elbow 40 does not project above the body of the radiator core asubstantial distance in suchfmanner that the elbow is adapted to clear the top wall of the radiator shell when the channeled member 32 has been placed upon the supporting'member 42 of the radiato shell (further to be described).

The elbow 40 of the radiator is adapted to vreceive a sectional spout 43 of the type shown in Figure v2, comprising a substantially cylindrical member having its lower end'fturned down to form a shoulder as at 44, and threaded as at'45 to fit complementary threads in the aperture 41. After the radiator shell has been placed upon the core, the spout 43 may be inserted from the top of the radiator shell and threaded into the elbow 40, thereby completing the assembly of the built-in shutter unit.

The exact construction of the sectional radiator spout may take the modified forms shown in Figures 11 to 14 inclusive, the most essential features being that the spout shall be divided in two parts so that the .core may be slid into the shell and thel spout inserted through an opening in the top of the shell. In the construction shown in Figures 11 and 12, the elbow 40 is formed with anupper flat surface 46 and a flange 47 bounding the aperture 41. The spout 43 comprises a substantially cylindrical member having an inwardly turned flange 48 provided with a. plurality of apertures 49 registering with threaded apertures in the flange 47, and the spout 43 may be secured to the elbow by a plurality of screw bolts 50.

.In theembodiment shown in Figures 13 and 14,:the elbowis provided with a reduced threaded end 51 forming a. shoulder 52,-andthe'spout y413i is formed with a complementaryithreaded :end53 adapted to screw -uponthe elbow Z.l0- A pin 54rrnay -be driven through the flange 480i the spout into the elbow for permanently ,securing these elejments againstrel'ative'rotation; 1

2 At one'sideof the upperchamber of the -iadiator core, inorderftofclear the water conduit, I provide a' thermostat chamber 55 comprising ai substantially cylindrical sheet metal tube 56 of sufiieicntflength totraverse the core; and secured at each end in a circulairopening in the walls F36 vand 38 bounded by inwardlyfturned' flanges 57 and 58.1l

if -The thermostats =59 preferably consist of .thermo'e'staticIl -wafers which are vslidably mounted within the thermostat chamber 55 being supported at their rear end by an adjustably Inou'ntedplate 7-1.l

fj'lhe tubular chamber 56'maybe secured to tlfe'flapges 58bywelding or riveting, and the rear-'endet the chamber 55 may be closed by a substantiallyc'up shaped member 60.v The :eup shaped'member 60 may be stamped from vsheet metal, being formed with a small cup 61' -adapted to receive -a' complementary nut 62,',sec1redthereinby aclose frictional fit. The nut-621 and theE cup (S1-are provided with registering apertures 63 and 64,-the aperture kin the nut'being threaded to receive the 'stem Iofga bolt 65, having a kerf'66 and a lock nut 67's' y, *Intheipre'sentcasd the member'60 is also `formed"`with Ialarger annular cup 68 surrounding the smaller cup 61, and is bounded by an outer flange 69 secure'd tothe wall 38 of lthe core chamber by welding'or other convenient fastening means.A The threaded bolt 65 is adapted `to' be secured to a Yhub 70 on a supporting plate71 by threading the bolt into said hub, and the chamber 55 is liliewise provided with a second plate 72 carried by a similar hub 73 and operatively connected to the movable radiator shutters.

Between the plates 71 and 72 are confined a plurality of thermostatic wafers preferably of complementary form to the chamber 55 and adapted to slide in said chamber, both during expansion of the wafers and during adjustment of their relative position by the bolt 65. The plate 72 is kept in close engagement with one side of the wafers by a spring 74, which biases the shutters to closed position, and the thermostatic wafers 59 react against the plate 71 to actuate the shutters when the engine temperature rises a predetermined amount.

It will thus be observed that by means of the bolt 65 and supporting plate 71, the relative position of the thermostats 59 may be changed at will,v and the temperature at which the vthermostats are adapted to open the shutters, may be adjusted by means of the bolt 65, being secured in adjusted position by the lock nut 67. The opposite end of the thermostat may be directly connected to the movable shutters without any intermediate adjusting devices, and the adjusting device may be hidden beneath the'hood of the internal combustion engine.

I sha-ll now describe the radiator shutter unit 21, together with the operatingA mech'- anism between the thermostat-s andthey shutters. Referring to Figure 15, I have here illustrated the improved shutter frame construction, consisting of an. end frame member 75 at the top, a pair :ofeside frame members 76 and 77. and a second end frame member 78 at the bottom. y The end frame member 75. comprisesv a sheetmetal strip, preferably of steel,ghaving a. downwardly extending flange 79 on its front side adapted to cover a non-rattling V bearing strip 80, further to Abe described. The frame member 75 .may also be .formed with a depending flange 81` at its rear edge for stilening the same, and is provided with a plurality of equally spaced apertures 82 for receiving the trunnions 83 of a plurality of shutters 84. At each end, the end frame member 7 5 may be provided with an attaching flange 85, bent down aty substantially "f right angles, and the flange 79I maybe widened as at 86 to provide an auxiliary attaching fiange on the front of the l'trame member.

The side frame members 76 and 77 may l be formed of a similar strip of sheet metal having a narrow flange 87 bent inward at substantially right angles on. the rear/ec to f'orm a channel, except at the bottom 88,

where the flange and a portion of the frame member have been cut away to accommodate the chassis of the particular vehicleA to which it is applied. At its forward edge, the frame member 76 is provided with a flange 89 bent inward at substantially' right angles and turned back on itself to form an apron 90, which tapers from the top of the shutters to the bottom and fills in the space between a rectangular enestration for the shutters and the inner edge oi' the shell 20,

where the shape of the engine hood tapers to the top. r he flanges 89 and apron 9() do not extend the full length of the frame member, but terminate at the lower end of the shutters where the main body of the i The lower frame member78 comprises Ea stamped sheet metal member, Apreferably of steel, having afplurality of false'shutters 95 of the same size lfas Athe `shutters. 84-I stamped therein, together with a substantiallyE .flat edge 96 for engagement with the inner edge of the lshell 20. 'f1'llheo'uter= ed'ge97 of the false shutter plate 94"conforms substantially to the inner `boundary lof/the rshellf 20 projecting beneathl saidy boundary and 'being engaged thereby. The frame member 78 `may be formed iwith apressed bead "98 at the upper'end ofi the false'shutterss 95, one side of the bead comprising the horizontal flange 92, havingx a plurality' of apertures S9-to receive the trunnions of the shutters-84. At each end the flange 92 -is-slithas'atlOO and turned up to" form an attaching 1 flange 101 of sufficient wildth to vbefreceivedwin` the channels 1102 of the' side frame members'.`

Centrally 4located in 'the Efalsashutter plate' 94iis 'ah aperture "129'fadapt'ed'rtol regf ister 'with thfeengine shaft for-'theinsertibn ofl a crank, and this aperture fmjay'. be 'fin'- ishedi -by fa fstamped 'sheet *metal ring 130 having"l an: outer annular bead 131 land an innerfflange 132 adapted tofitin' the aperture" 129. The a'perture 'nay he l closed by ajs'tamped metal `cap`y133 having an inwardly turned annularI flange 134, adapted to'fit the boundary of the flange 132, andthe cap 133 may j'besecured in,I place 'by afpairjof spring fingers 135 engaging the flange 132 and secured tothe cap by a rivet 1,36.

v The 'false .shutter plate 94 is thus adapted to lpermanently closethe lower endo'f. the radiat'or'core, and provide'a fnished'ap'- pearance simulating shutters which'extend the full height of theI vfront of the radiator.

The shutters 84 comprisestrips of sheet metal, preferably steel,:outwardly curved as at 103 and having one edge 104 curved about a rod 105 which projects at {either end of the shutter and forms the trunnions 83. The opposite edge of the shutter is formed with a pressed curved groove 106 adapted to fit against lthe curved portion 104 of the adjacent shutter. to completely seal the intervening opening when the shutters are in closed position, and each of the shutters is provided with an actuating arm comprising an inwardly turned flange 107 at its upper end and havingan aperture 108.

The shutters may be secured together for simultaneous actuation by a shutter bar 109, provided with a plurality of rivets 110 passing through the apertures 108 in the flanges 107 on the shutters. The actuating bar 109 bears a rivet 111 projecting upward through an arcuate slot 112 in the upper frame member 75, ythe rivet 111 providingy a pivotal connection with a link 113. The actuating bar 109 and the link 113'are vbiased toward the left in Figure 7 by a coil'spring 74, securedv to one end of the' link 113 by being hooked about a rivet 114 and secured at its other end by lbeinghooked about a rivet "115 carried by 'theframe member 75... f

At a pointv opposite the thermostat chamber 55, the framelmemberf carries a rivet 116, -whichfpivotally supports a'bell crank 117, formedfor convenience of a triangular piece of metal and pivotally secured as `lat 118 to the link 113. The other corner ofthe bell crank 117 is pivotally .secured by rivet 119 to a yoke 120 in-which a connecting 'rod '121 may .be threaded or otherwise secured. vThe. connecting rod: 1121 has -its opposite yend secured to the-hub `7 3 of the plate 72, which bears against the :thermostatic wafers .59.1 i The foregoing structure of the shutter and actuating mechanism may lbe 'assembled tofgether ,as a whole up to and includingifthe plate '72. Thefassembly of the shutter.' land frame members may be accomplished as. fol; lows: f i =.,.w

The shutters 84maybe first pivotallyconjnected'by meansfof thel shutter bar.1095 and the tside -frame members Y7 6 ,and 7 maybe attached tosthe lower frame member 78., In attaching these frame members,-t11e attaching flange 101 yis received in the channel. 102 and vthe loweredge of the apron-90 rests upon the upper flange 92 of the .alseshutter plate. ,The flange 89 and apron 90 pro.- ject past the attaching flange 101 .and provide a fnishedside for the front of the-shut.- ter frame, and the flange 101 may'i bese'- cured to the .side frame member-by spot welding, riveting or other convenient: fastening l means. L The shutters which are i secured together'iby ltheyactuating bardnay then have their lower trunnions inserted in the apertures99, and the upper frame mem'- ber 75 maybeput in place :with-the upper trunnions-83 in the apertures'82. y

They attaching flange 86 of' the `upper frame member is adapted to be riveted,.bolt ed or spot welded to the upper edge ofthe apron 90, while' the attaching flange 85 is received ,in thechannel 102 where it is simi:- lary fastened. T he cut-out space between these flanges receives the upper edge of the flanges 89 and the apron 90, permitting the foregoing method of assembly, which provides a frame member that is light, durable and very strong.

In order to guard against the rattling of the shutters 84, I prefer to provide resilient members and 122 for pressing against the ends of the shutters and the ends of the lower trunnions respectively. The anti-rattling member 80 comprises a sheet metal strip having an attaching flange 123, a flange 124 at substantially right angles thereto and a flange 125 parallel to the frame member 75, and provided with a plurality of apertures which register with the apertures 82. The width of the flange 124 is substantially equal to that of the flange 79 forming a boX- like enclosure `through which the trunnions 83 pass, and the flange 125 presses against washers 126 on the upper ends of the shutters,vurging the shutters against washers 127 between the shutters and lower frame member 78. The anti-rattling member 122 is of similar form, but is not provided with 'registering apertures,fits lower flange 128 resiliently engaging the ends of the ;rods 105 which form the trunnions for 'the shutters. Both-the anti-rattling members 80 and 122 maybe secured to the upper and lowerframe members, respectively,.by spot welding at the llange 123, or other convenient fastening means, and these members are preferably secured to the frame members before the shutter frame is assembled. v 1V The radiator shell 20 comprises a. finished sheet` vmetal member having exterior walls 137, 3138 '139and 140 which conform to the shape of the hood desired; .i LThe side walls 140 and137 merely extend down to a lpoint sufficient to cover thevradiator-core, while the, forwardl edges4 of these walls project downward asffat 141 toenclosefthe outer edges of thefalse shutter plate. The bottom wal1`142 may vlikewise conform to the bound-` ary of the false shutter plate The shell l20 is provided with an inwardly extending flange 143 on the walls 137, 140 and 142, this flange projecting over the apron 90 and the flange-96 ofthe false shutter plate. In orderto l.provide a finished appearance for the shell, the flange r143 may be turned backward as at 155 and provided witha contacting flange 156 .substantially parallel to the aprons 90 and'rto the boundary .96 of the false shutter plate. The upper ,front of the radiatomshell is ilikewiseprovided with a depending-v flange or wall -144 adapted to project down over the shutter mechanism to a point just below the upper end of the shutters. The `wall 144 is preferably outwardly curved as at 145, having an inwardly7 extending flange 146 at its lower boundary and a contacting flange 147 engaging the shutters when in closed position. The upper wall 1380i the shell is provided with an aperture 148 which is finished with a cast metal crown piece 149 having an aperture 150 located to receive the radiator spout 43.

In -order to support the radiator shell directly upon the chassis of the vehicle, l. provide a transverse frame member 151 comprising a relatively thick strip of metal having upwardly turned ends 152, which may be spot welded within the outer walls 137 and'140 of the shell. The supporting member 151 is adapted to rest directly upon a transverse frame member 153 of the chassis and provide direct support for the shell upon the .chassis of the vehicle.

The method of assembly of the radiator core, shutter unit and shell is as follows:

The shutter frame is attached to the radiator core by a plurality of bolts or other convenient fastening means, passing through the side frame members 76 and 77 and the integral attaching flanges 26 on the radiator core, the spout 43 having been removed from the radiator core. The shell 20:,as shown in Figure 4 may be placed upon .the combined core andshutter by tilting the up# per end of the core backward so that the shell may be slid up from below with the `false shutter apron projecting lbet-Ween the supporting member 151 andthe-lower flange It should be observed that the"difli culty here involved consists in placing the shell upon the core and shutter when a part of the shell goes behind the shutter and another part goes in front of -the shutter, and this is accomplished by sliding-the shell up about the false shutterapron. 4 I

lV hen the `shell has'reached the proper elevation relative to the core and "shutter frame, -thevtop of the shellV maybe swun tothe right in Figure 2, over the top'of 'the' core until the aperture 150 registers with the aperture 41 of the spout, whereupon'the spout'43 may be aflixed as previou'sly'described. The core and shell may be secured together at their lower ends 'by bolts 154 passing through the supporting member'33 on the core, through the supporting -ment ber 151 on the shell and through thechassis frame member 153, when the completede' vicel is assembled upon the chassis; of thel vehicle. i

It should be noted that when the supporting cross bar is used, the radiator shell, shutter 'and radiator core must be `completely assembled' before the assemblyvis" installed upon the chassis of the automotive vehicle; but when the cross 'bar is not em# ployed and some other means of support isz used for the shell, the elements may be separately assembled with the chassis of the vehicle.

The operation of the automatic shutteriis as follows:

When the temperature of the cooling Huid reaches the boiling point, the heated water and its vapor will come in contact with the thermostat chamber 56 heating the wafers 59 which expaiid, moving the plate 72 outward and rotating the bell crank 117 in a counter-clockwise direction. The link 113 will then move to the right, drawing with it the shutter bar 109 against the tension of the spring 74, opening the shutters 84, which pivot toward the core. Upon cooling of the engine and the fluid in the water jacket, the wafers 59 will contract, permitting the sp1-,ing 74 to return the parts to the position shown in Figure 8. The temperature' at which the thermostat will actuate the shut ters, may be determined by relative position of the thermostats and the thermostats may be adjusted by means of the bolt 65.

Referringto vFiguresflto 22, I have here illustrated. several., modified forms of supporti-for lthe thermostatic wafers 59, Tand it isito=be understood that `.these modified forms may be substituted -for the device shown in Figure 3. Each of these modified forms not only includes means foradjustably supporting a thermostat, but `quickly `releasable means for releasing the thermostat and causing the shutters to close when desired.v

It is often i.desirable to close the shutters onV an automotive vehicle immediately,v.al thoughtheenginerandv thermotats may be hot as when a Canis-driven in in a warm condition, tobe washed. j Under such conditions the :shutters should be closed in order that the? water. ,may not lpenetrate the hoodV and spray uponthe heated engine, -and it has been found that mechanics will .try toforce the shutters shut damaging the thermostats and forcing them out of adjustment.'

is alsodesirableto 'quickly closethe shutters when parking .the car in cold-,weather in order thatas much ,heatgmay beretained the engine as. possible, andgt'ory this pnrposelrhaye provided means for moving they thermostat lto inoperative position.

Referringto Figure .16, the thermostat chamber 55 mayjbeformed by a substantially cup-shaped member having a fiat bottom 161,'andan outwardly ,projecting annular lange162. The opposite end of the cupsuhaped member 160 may be provided with an outwardly projecting fiange 163 tit-ting snugly against the inside wallt 164 .of the radiatorV and the flanges 163 and v-164 may be secured together by welding as well as bythe rivets 165 formed upon the posts 166.

It* should benoted that the4 thermostat chamber 55 in thel present embodiment does not 'y extend completely across the. radiator core in the previous embodiment and the forward end ofthe chamber 55 may communicate with a tubular vconduit 167 through which the connecting rod 121 may pass to actuatethe same mechanism shown. in Figure 3. j The tubular member 167 may .be welded tothe annular flange 162 of the thermostat chamber and Ito the annular flange 168 projecting inward from the forward wall 169 of the radiator core.

The thermostats 59 are'preferably thermostatic `wafe1s filled with a volatile element capable of great expansion, and they are 4 slidably supported in the chamber 55 and retained between the thermostat engaging plates 170 and 171. The thermostat engaging plate 1.70 is carried by the connecting,Y rod 121, while the other plate 171 is connected by an adjustable member 172 and the plates 170, 171 are preferably of smaller area than the'sides of the wafer in order that they may engage principally at the central portion of the wafer where expansive movement is at itsmaximum.

Under normal conditions. thef adjustable member 172 is xedly secured inthe4 position shown in Figure 16, while the' connects ing rod 121 is `biased toward. the rightfin Figure 16 by the spring74 (Figureff') whichibiases the shutter-to closedlposition, and the wafers v59 are resiliently :heldkbetween the plates 170and 171. f

The adjustable memberl 172.1nal -consist of a threaded rod or bolt passingthrough an aperture 173 in' a cover plate 174. Thefad justable rod 172.1nay vbe provided with-a kerf 175 and is'adapted to Ibe threadedrin a circular ynut 176 which isfixedlyrseoured in a Vsmallcup 177 formed-in the coverplate 174. The nut 176 may beheldv byfa Eclose frictional fit in the cup^177.1 j ""r The adjustable rod- '172 is also provided with a lock nut 178 andl it will thus-be observed that the Ithermostat lengaging' 7plate 171' againstrfwhich the thermostats reactto actua'teI the shutters,"may bemoved aback and forth by the adjustable rod"172 and'rthe action of thethermos'tat-s may becontrolled by adjusting their position relative to theradiator core and theI shutter.` Thisadjus'tment may be retained by meansfot a' lock nut-178.11 A

' The cover plate 174 may be supported in' position to close the `thermostat-fchalnber 55 and to carry the adjustable rod 172, by a plurality of posts 166. For this purpose the cover plate is provided with'a ccircum-4 ferentially extending slot 179 for each ofthe postsffl66., and the slots 179=are ofsuflicient width to slidably=receive thereducedportion 180 upon the posts 166. The' postsI 166 are likewise formed with shoulders181 between the reduced portion 180vandtl1e1cylindrical portion 182, and with heads 183,

and the slots 179 terminate at similar ends in circular apertures 184 adapted toslidably support the covers upon the cylindrical portions 182 of the posts 166.

' AThe cover is also provided with a pai-r of stamped radially extending lugs '185 and' it will thus be observed that the cover ma)r be rotated in a clockwise direction in Fig` ure 17 until the circular apertures 184 register with the cylindrical surface 182'of'the' posts, after which the cover will be slid out upon the posts until it engages the heads 183.

It will thus be observed that thecover plate 174 is provided with quickly rcleasable securing means for moving the therniostats 59 to inoperative position, and when the cover plate is in released position, the amount of expansion of the thermostats is not sufficient to actuate the shutters to open position. When it is desired to place the thermostats in operative position again, the cover may be slid on the posts 166 until it engages the rear wall of the radiator corewhen the cover may be turned in a'counterclockwise' direction, engaging behind the shoulderslSl upon the posts. The original adjustment of the thermostats is not disturbedby such a releasable device and the thermostatic shutter is adapted to retain its proper adjustment permanently. i

Refer-ring to-Figures "18 and 10, I lhave here illustrated vanother-*modified form of mean's vfor moving thethermostats to `inoperative yposition, The structure of the thermostats and their chamber may be ei;- actly'the same as in the previous embodi ment except that the coverplate 186 vmay be tixedlysupporter'l upon fthe radiator core by a' plurality of bolts 187 passing through the flanges'38, 163 and the flange 188 upon the cover: plate. 'The-cover plate may then be formed With'an inwardly Lextending annular flangezj189 for guiding `the adjustable rod 172Lan`d the coverA plate may be .provided with 'laf plurality of lcircumferentially. extending/slots '190,-'.i terminating at similar ends-in circular-apertures 191. f

- Instead'of beingfcarrieddirectly by, the cover p1ate'186, the rod 172 has its circular nut 192 fixedly secured ina cup 193 formed at the -centerfofa plate-194vvhich also `carries'a pair of radially-extending Wings 195 like a wing nut. The plate 194 also supports a fpair of lposts 196 riveted thereto and provided With cylindrical surfaces 197 adapted to slide! in'ft'he lcircumferential slots 190, and the heads 198:01t the posts 196 are adapted to'passthrough the circular apertures 191.

' The ll'oek nut 199 is'aolapted to engage the outer 'surface ofthe cup 193 and retain the rod '172 in vits 'adjusted position relative to ithewing plate194, lbut if it is desired to move the thermostatste inoperative posi* tion',this mayl beaccomplished by turning thewing plate 194 in a counter-clockwise direction in Figure 19, and the heads 198 register with the apertures 191. T he AWing plate 194 may then be moved to the right in Figure18, removing the support from the thermostats 59 and permitting the shutters to close if they are then in open position. The 'cover plate 186 may be provided with oneor more stamped projections 200 te frictionally engage the Wing plate 194 and retain it in the position shown in Figure 19.

Referring to Figures 21 to 22, I have here illustrated another modified form oi thermostat support in which the thermostat chamber and its cover plate may be supported inthe same manner as in Figures 18 and 19.

In this embodiment thecover plate 201 is preferably formed with an outwardly extending annular flange 202 capable of slidably receiving a supporting sleeve 203 which is threaded to receive the adjustable rod 17 2.

The supporting sleeve 203 comprises a substantially `cylindrical member having a threaded bore 204 extending through the same and having a knurled annular head 205. The sleeve 203 is also provided with a pair of slots 206 extending from one endxo the sleeve to thev head and' communicating with the circumferentially extending slots 207 which terminate in short slots 208eX- tending'aivay from the head;

The cover plate 201 is alsoprovided with a pair of inwardly, extending lugsg209 carried by the annular iange 202 and therlugs 209 are adapted to project into the slots 206.

It will thus be observed that when-the ings 209 are engaged. inthe slots 208as shown in Figure 20., the reaction ofthe thermostats 59 and pressure vof the spring'vll will tend to keep the sleeve 203 in such posi tion, but the sleeve may be pushedinwardby means of the knurled head y205 rotated countenclockivisein.Figure 21 until the lugs 209 reach the slots 206, whereupon the sleeve may be Withdrawn to the right in Figure 207 In 'this embodiment-as Welk-fthe rod i1f72 may be retained in adjusted? position 'bythe lock 11110199 land it Will thus be: observed that :the position of the thermostat may he adjusted to control the action of theshutter. At the same time; the vthermostats Vmay be moved toinoperative position lat any time by means of the sleeve 203 which is releasably carried by the cap 201. If desired, the slots 206 may be provided with pins 210 preventing complete Withdrawal of the sleeve 203. f

It will thus be observed that I have provided a` novel radiatorshutter yassembly in which the core and vshell are'vboth directly carried by the chassis of the vehicle andthe shutter frame is supported by integral at taching flanges carriedv by the core. My thermostatic mechanism isfuiore quickly responsive to temperature conditions of the engine at temperature point Where it is desired to have shutters quickly actuated to the open position, and'my thermostat may readily be adjusted to open the shutters at the desired point. The radiator and shutter assembly is capable ot' long periods of rough usage, Without possibility of damage to the fragile parts of the radiator core and Without causing any rattling.

My radiator shutter also includes means for adjusting the position of the thermostat to control the action of the shutters and quickly detachable means tor moving the thermostats to inoperative position, whereby the shutters may be quickly closed at any time.

While I have illustrated and described a' specific embodiment of my invention, many modifications may be made Without departing from the spirit of the invention, and I do not Wish to be limited to the precise details set forth, but desire to avail myself of all changes Within the scope of the appended claims. f v

Having .thus .described ymy invention,

what .I 'claim as new and desire .to secure by Letters-Patent ofthe UnitedStates is.: .n I ffIn. a built-in shutter assembly, the combination -of a radiator shell` having a forward fenestration bounded by 'an inwardly projecting contacting flange, said shell having downwardly extending upper side flanges. terminatingat their bottom above-fthe .lower end.. ofa said fenestration, and having lower backwardly extending narrowfside flanges, and a top flange provided' with- .a spout opening, and a shell supporting .member comprismg a transverse frame .member having attaching flanges at each of its ends, said attaching flanges being secured-tozsaid upper backwardly extending side flanges ofsaid shell at each side, and said supporting member being located rearwardly of .said fenestration `to provide rspace for ashutter unit, and a radiatorshutter. unit located between said. inwardlyy extending. contacting.` flange and closingzsaid fenestration, said shutter. unit extending downwardly below said supportingffram member and being located, lin frontfof said supporting frame member.

In fa built-in 'shutteri assembly, the com bination'of a radiator shell having a forward fenestration bounded by an inwardly projectingcontactin'g flange, said shell having downwardly extending upper side flanges terminating at their bottom above the'lower'endzof said .fenestratiom and having lower backwardly extending narrow side flanges,` and latop flange provided with a spout opening, and a shellsupporting member comprising= atransverse frameinember having attaching flanges at each of its ends, said attaching flanges being secured to said upper backwardly extending side flanges of said shell at each side, and said supporting member being located rearwardly of said fenestration tol provide space for a shutter unit, a radiator shutter unit located between said inwardly extending contactingy flange and closing said fenestration, said shutter unit extending backwardly below said supporting frame member and being located in front of said supporting framej member,

and a core unit supported at its bottom on said supporting member, carried by said shell, said core unit having a core band with integral forwardly extending flanges, and

" means for securing said shutter unit to said integral forwardly projecting flanges.

3. In a built-in shutter assembly, the combination of a radiator shell having a forward fenestrationv bounded by an inwardly projecting contacting flange, said shell having downwardly extending upper side flanges terminating at their bottom above the lower end of said fenestration, and having lower backwardly extending' narrow side flanges, and a top flange provided with a spout opening, and a. .shell 1 vsupporting member comprising a transverse frame member havingattaching flanges ateachg. ot' its ends, saidattaching flangesv beingi secured to said upper' 'fbackwardly extending side flanges of said shell. at leach side,;and .said supporting member being located rearwardly of saidv fenestration .to provide-space.for a shutter. unit,.a radiator shutter unit located between said inwardly extending. contacting flange and .closing said-.fenestratiom said shutter unit extending backwardly bclow 4 said supporting frame member .and being located in front of said `supporting frame member, and a core..unitsupported at itsbottom on 'said .supporting-.member carried by said. shell,.said.core unit having a core band fwith integral forwardly extend; ing flanges, andfmeans for securingsaid shutter unit"` to said integral forwardlypro.- jecting flanges; said shutter funit :being pro,.- vided at .its 'sides with i-inwardlynprojecting flanges for :resiliently .engagin'g'rthe inwardly extending .contacting flange-on. said shell about said fenestration, -and .aspontffmeme ber Kadaptedto.be'passed through said spout opening' in said shell.- andisecuredf'to, said core unit to holfdsaid shutter unit inengagement with the v contacting flange ;of.'said shell.' I l 4. In a built-in shutter assembly,1the.combination ofa radiator core rhavingla/core band with integral forwardly .projecting flanges, with a shuttery unit comprising a frame adapted toffit againstthe sidesof said forwardly projecting flanges, means :for se-y curing said shutter frameand flanges .together, and aradiatorshell-gsaid shellhaving a fenestration with an vinwardly extending'contacting flange about said fenestration, and said fenestration extending. substantially below said core, said shell having relatively wide side flanges terminating adjacent the bottom of said core, and a transverse framemember having its ends secured to said side anges of said core adjacent their lower termination, said transverse frame member on said shellsupporting said core.

5. In a built-.in shutter assembly, the combination of a radiator core having a core band with integral .forwardly projecting flanges, with la shutter unitv comprising a frame adapted to fit against the sides of said forwardly projecting flanges, means for securing said shutter frame and flanges together, and a radiator shell, said shell having a fenestration with an inwardly extending contacting flange about said fenestration, and said fenestration4 extending substantially below said core, said shell having relatively wide side flanges terminating adjacent the .bottom of said .core,l and a transverse frame member having its ends secured to said side flanges of said core adjacent their lower termination, said transverse frame member on sald shell supporting said core, and said shutter unit being provided with a depending false shutter apron located in front of said shell frame member and located in back of said inwardly extending contacting flange, and means for securing said core to said shell with said shutter unit engaging said contacting flange.

6. In a built-in shutter assembly, the combination of a radiator core having a core band with integral forwardly projecting flanges, with a shutter unit comprising a frame adapted to fit against the sides of said forwardly projecting flanges, means for securing said shutter frame and anges together, and a radiator shell, said shell having a fenestration with an inwardly extending contacting flange about said fenestration, and said fenestration extending substantially below said core, said shell having relatively wide side flanges terminating adjacent the bottom of said core, and a transverse frame member having its ends secured to said side flanges of said core adjacent their lower termination, said transverse frame member on said shell supporting said core, and said shutter unit being provided with a depending false shutter aprpn located in front of said shell frame member and located in back of said inwardly extending contacting flange, means for securing said core to said shell with said shutter unit engaging said contacting flange, and resilient means interposed between said shutter unit and the contacting flange on said shell comprising inwardly extending and outwardly folded resilient anges spaced from each other and carried by two of the sides of said shutter frame, said backwardly folded flange engaging said contacting iiange.

witness whereof, I hereunto subscribe my name this 5th day of April, 1928i.

EDGAR G. PETERSEN. 

